Electrode holder



y 22, 1952 H. H. PEYREFERRY 2,604,568

ELECTRODE HOLDER Filed Jan. 26, 1950 Fig.

Herbert H. Peyreferry INVENTOR.

BY MMUM L Patented July 22, 1952 UNITED STATES PATENT OFFICE ELECTRODEHOLDER Herbert H. lfeyreferry, Eddystone, Pa. Application January'26,1950, Serial No. 140,601 (01.219-8) 3 Claims. 1

This invention relates to new and useful improvements and structuralrefinements in electrode holders, more particularly, holders for weldingelectrodes, and the principal object of the invention is to provide aholder of the character hereindescribed, which is very simple inconstruction and operation, which does not require lubrication oradjustment, which, being properly ventilated and insulated, safeguardsthe operator against the eiTect of heat and electric current, and whichlends itself to economical manufacture.

An important feature of the invention resides in the provision ofreleasable means for frictionally retaining an electrode in the holder,while another feature resides in the structural arrangement of theinsulating means.

With the above more important objects and features in view-and suchother objects and features as may-become apparent, as this specificationproceeds, the invention consists essentially of the arrangement andconstruction of parts as illustrated in the accompanying drawings, inwhich:

Figure 1 is a perspective view of the invention.

Figure 2 is a longitudinal sectional view thereof.

Figure 3 is a transverse sectional view, taken substantially in theplane of the line 3--3 in Figure 2, showing the electrode in place.

Figure 4 is a transverse sectional view, taken substantially in theplane of the line 4-4 in Figure ,2, and

Figure 5 is a perspective view of the barrel used in the invention, thesame being shown in an inverted position.

Like characters of reference are employed to designate like parts in thespecification and throughout the several views.

Referring now to the accompanying drawings in detail, the inventionconsists of an electrode holder designated generally by the referencecharacter ID, the same embodying in its construction a metallic barrel[2 having a closed end l4 and an open end portion I6 which is tapered asshown in Figure 2 so as to accommodate a conventional connector l8 forsecurely attaching an'electric conductor 20 to the barrel. The connectorI8 is tightened into position by means of a nut 22 which is disposedwithin the barrel, it being noted that the latter is provided with alongitudinally extending trough or recess 24 so that access may be hadto this nut as well as to other components, hereinafter described, whichthe interior of the barrel contains.

The closed end portion of the barrel I2 is provided with a pair ofdiametrically opposed, long'itudinally extending slots 26 to accommodatean electrode 28 which maybe inserted in the slot and disposed at anangle to the longitudinal axis of the barrel, there being provided meansfor frictionally engaging the electrode so as to removably retainthesame in position.

These means consist of a resilient strap or leaf spring 39 which has oneend portion thereof secured as at 32 to the inner wall of'the barreltongue 12, while a pressure pad 34 is secured as at 36 to the free endportionofthespring. The pad 34 is disposed in the closed end portion ofthe barrel between the slots 26', and the resiliency of the spring issuch as to urge the pad 34 upwardly as shown in Figure 2 by the arrow38.

However, means are provided for depressing the spring and the padthereon, these means consisting of a depressible releasing knob 40 whichis secured-to an intermediate portion 01 thespring 30 by suitable screwsand projects outwardly from the barrel as shown.

It will be apparent from the foregoing that the knob 40 may be depressedso as to move the pad 34 below the slots 26, whereupon the electrode 28may be inserted in the slots and the knob 40 released, so that thepressure pad 34 engages the underside of the electrode as shown inFigure 3, thus frictionally retaining the electrode in position by theresiliency of the spring 30. Similarly, the knob 40 may be depressed tofacilitate removal of the electrode, as will be clearly ap parent.

Insulation is provided on the barrel to protect the operator from theeffects of heat and electric current, this insulation comprising ajacket of insulating material, consisting of a jacket section 44 and ajacket section 46, both of which are grooved as shown, so as tofacilitate dissipation of heat and, also, to prevent slipping of theholder when it is held in the hand. The barrel I2 as Well as the jacketsection 44 are provided with registering openings to receive the knob40, the jacket section 44 also being equipped with a pair ofdiametrically opposed, longitudinally extending slots 48 which are inregister with the aforementioned slots 2% in the barrel, to receive theelectrode. Moreover, these slots also serve to connect the interior ofthe barrel with the atmosphere, thus assisting in the dissipation ofinternal heat.

An insulating disk 50 is secured by a screw 52 to the closed end M ofthe barrel I2, the inner surface of the disk being provided with atransverse rib 54 which is receivable in a transverse groove 55 in theend M of the barrel, whereby rotation of the disk on the barrel isprevented.

The front end or edge of the jacket section 44 abuts a marginal edgeportion of the disk 50 which is sufficiently large in diameter toproject beyond the lateral wall of the barrel I 2, while the rear end ofthe jacket section 44 is counterbored as at 58 to receive an annular,interfitting shoulder 60 on the front end. of the jacket section 46. Thelatter is fastened to the barrel 12 by a set screw 62 and is open at itsrear end, so as to accommodate the connector 18 and the conductor 20, asshown in Figure 2;

It is believed that the advantages and use of the invention will beclearly apparent from the foregoing disclosure and accordingly,furthervdescription thereof at this point is deemed unnecessary.

While in the foregoing; there has been shown and, describedthe-preferred embodimentofthis invention, it is to be understood thatminor changes in the-details" of construction and arrangement of partsmaybe resorted to without departing from the spirit and scope oftheinvention as claimedr Having described the invention, what claimed asnew is:

1. An electrode'holder comprisinganelongated barreLof'conductivematerial having a pair of diametrically opposedslots in oneend thereof, said barrel: further including an elongated, cen' tral;troughed portion; atongue integralwith and extending from the-end ofsaid: barrel remote from: said slotted; end and overlying a portion ofsaid gtroughed portiomparallel, inwardly directed fiangesson endofsaid-tongue forming an axially extending. channelashaped groove'onsaid tongue,

a resilient. straphaving oneend received in said groove andrhaving itsother" end terminating between: said-t diametrically opposed, slots toresiliently engage a. welding rod extending through said slots, said oneend of said strap being secured in said groove and being maintainedagainst lateral movement by the walls of said inwardly directed flanges,said barrel having an opening therein intermediate its ends on the sidewall portion opposite said trough, a strap release knob slidably andguidably received in said opening and secured to said strap intermediateits ends, an insulative sheath disposed about said barrel and having anaperture therein conformingto and registering with said barrel opening,said knob slidably and guidably extending through said sheath apertureto non-slidably and non-rotatably retain the sheath on the barrel, aconductor secured to said remote end of said barrel, said remote endhaving an axial bore therein; said conductor being received in saidbore.

2. The combination of claim 1 wherein the slotted end of said barrelhasa transverse groove therein; an insulating disk securedto said end,saiddisk including": a. transverse rib; said rib being received Iinsaidtransverse: groove to prevent:

rotation. of said disk.

3. Thecombination' of claim 1 wherein said;

axial'bore'is of frusto-conical shape.

HERBERT H. PEYREFERRY.

REFERENCES CITED The" following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name. Date-v l,069-,697 Hills .Aug,. 12,1913 2,338,913: Esposito Jan, 11, 1944 2,360,016 Roland: Oct. 10, 194-!2,384,999 Heinrich.- Sept; 18; 1945 2,405;406 Cowbridge Aug. 6, 1946:2,432,639 Webster Dec. 16, 1947 2 4581723 Nilsson Jan. 11, 1949

